PCIe to 2-Port Serial Card, 9-Pin RS232 Adapter Card, Parallel & COM Port Expansion Card, WCH382L 1-Port Serial + 1-Port Parallel

The EZ-WCH382L is a PCI Express 2 serial card designed for POS and ATM applications, and it is the preferred choice for industrial automation system integrators. The EZ-WCH382L supports various mainstream operating systems, including Windows and Linux. Additionally, the two extended RS-232 serial ports can both support a communication rate of up to 230.4 Kbps and provide modem control signals to ensure compatibility with various peripheral serial devices. Since this card is "x1" PCI Express, it can be installed in various PCI Express slots (including 4x, 8x, 16x).

Function and Specification

General parameters

Complies with PCI-Express specification Revision 1.1

PCI-Express Single-Lane (x1) bus bandwidth: 2.5 Gbps

Supports DOS, Windows 8/7/Vista/XP/2000/Server 2003-2008 32/64-bit, Linux and other operating systems

Serial interface (RS232)

Complies with industrial standard 16C450/16C550 UART

The chip has built-in 256-byte FIFO and built-in hardware/software flow control functions

The data transmission rate of each serial port can reach up to 250 Kbps (customized version can reach 1 Mbps)

Baud rate: 230.4 Kbps

Serial communication parameters: Data bits: 5, 6, 7, 8

Stop bits: 1, 2

Parity check: None, Even, Odd, Space, Mark

Flow control: RTS/CTS, XON/XOFF

I/O address: Allocated by BIOS

IRQ: Allocated by BIOS

Serial interface signals RS-232: TxD, RxD, RTS, CTS, DTR, DSR, DCD, GND